https://bugs.kde.org/show_bug.cgi?id=450874
Bug ID: 450874 Summary: Plasma Wayland remaps virtual tablet input Product: kwin Version: 5.24.2 Platform: unspecified OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: wayland-generic Assignee: kwin-bugs-n...@kde.org Reporter: tony0000...@gmail.com Target Milestone: --- SUMMARY I am a pen display owner, and with the release of Plasma 5.24 I am looking to switch from x11 to Wayland. During my tests I encountered problems with the userspace tablet driver I am using, which is OpenTabletDriver. I outlined them in detail in the project's GitHub issue tracker[1], believing it was a matter of "just adding support for Plasma Wayland" (and I suggested a couple of ways to do so), but turned out the developers felt it wasn't really their problem, since other Wayland implementations work well and they didn't feel the need to make a special use case just for Plasma. Now, this could be the end of the story, but it really outlines a problem: KWin maps virtual tablet input as if it were a real tablet, therefore causing mapping problems for end users. I don't know if the second problem is a bug to be reported on KDE bugzilla or just a shortcoming, but either way this is breaking my use case and for the time being I cannot really switch to Wayland; and I feel like other people who draw with the help of userspace drivers can also be held back by such thing. I think there should be at least a setting in `kcm_tablet` that disables all internal mapping and "just accepts the input"; that, or a DBus call that the userspace driver can make, or (better) both things. STEPS TO REPRODUCE 1. Use OpenTabletDriver as an userspace tablet driver / configuration solution 2. Try to actually use the tablet under the Wayland session 3. Notice that the output is not what you expected OBSERVED RESULT KWin maps the virtual tablet input as if it was a real tablet plugged in and using a kernel driver. EXPECTED RESULT KWin won't map input coming from a virtual input device by default. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Artix Linux, 5.24.2 (available in About System) KDE Plasma Version: 5.24.2 KDE Frameworks Version: 5.91.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION [1]: https://github.com/OpenTabletDriver/OpenTabletDriver/issues/2083 -- You are receiving this mail because: You are watching all bug changes.